Submission #443813

#	Time	Username	Problem	Language	Result	Execution time	Memory
443813		Khizri	Mutating DNA (IOI21_dna)	C++17	22 / 100	1587 ms	3916 KiB

dna

#include "dna.h"
#include <bits/stdc++.h>
using namespace std;
#define all(v) (v).begin(),(v).end()
string a,b;
void init(std::string A, std::string B) {
	a=A,b=B;
}

int get_distance(int x, int y) {
	string l="",r="",ll,rr;
	for(int i=x;i<=y;i++){
		l+=a[i];
		r+=b[i];
	}
	ll=l;
	rr=r;
	sort(all(ll));
	sort(all(rr));
	if(ll!=rr){
		return -1;
	}
	int ans=0;
	while(l!=r){
		for(int i=0;i<l.size();i++){
			if(l[i]!=r[i]){
				for(int j=i+1;j<l.size();j++){
					if(l[j]==r[i]&&l[i]==r[j]){
						swap(l[i],l[j]);
						ans++;
						break;
					}
				}
			}
		}
	}
	
	return ans;
}

Compilation message (stderr)

dna.cpp: In function 'int get_distance(int, int)':
dna.cpp:25:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |   for(int i=0;i<l.size();i++){
      |               ~^~~~~~~~~
dna.cpp:27:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |     for(int j=i+1;j<l.size();j++){
      |                   ~^~~~~~~~~

• Subtask 1: 0 / 21
• Subtask 2: 22 / 22
• Subtask 3: 0 / 13
• Subtask 4: 0 / 28
• Subtask 5: 0 / 16